Tesla had an announcement for their Tesla Semi, an electric tractor trailer. According to the announcement, the performance specs, economics, and safety of the Tesla are superior to an equivalent Diesel truck. The announcement is also proposing to build a network of solar powered charging stations.

The announcement had the cult-of-personality feel of an Apple product release, but there is great potential for these solutions. Tesla has succeeded in making electric cars and electric advances sexy, and to quote Musk on the release of the Roadster: "The point of doing this is to give a hard core smackdown to gasoline powered cars."

Whether or not Tesla succeeds in implementing all of its grand vision for the future is somewhat immaterial; it has already succeeded in shifting the conversation in an otherwise static industry.

Listening: The Star Wars theme leading epically into a sort of tense statement of Han and Leia's theme followed by a rapid key transition into a brief restatement by the brass at 9:11. Chills.

Also suitably epic: Summon the Heroes. It also has a period of tonal uncertainty (say 4:16) leading to the tonic moving up a whole step (4:34). BUT WAIT: there's more (5:20, le jump to the dominant in the horns).